diff options
Diffstat (limited to 'quotes.cc')
-rw-r--r-- | quotes.cc | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/quotes.cc b/quotes.cc new file mode 100644 index 00000000..65dc7316 --- /dev/null +++ b/quotes.cc @@ -0,0 +1,76 @@ +#include "quotes.h" +#include "datetime.h" +#include "error.h" +#include "debug.h" + +#include <fstream> +#include <stdlib.h> + +namespace ledger { + +void quotes_by_script::operator()(commodity_t& commodity, + const std::time_t moment, + const std::time_t date, + const std::time_t last, + amount_t& price) +{ + DEBUG_CLASS("ledger.quotes.download"); + + DEBUG_PRINT_("commodity: " << commodity.symbol); + DEBUG_PRINT_TIME_(now); + DEBUG_PRINT_TIME_(moment); + DEBUG_PRINT_TIME_(date); + DEBUG_PRINT_TIME_(last); + if (commodity.history) + DEBUG_PRINT_TIME_(commodity.history->last_lookup); + DEBUG_PRINT_("pricing_leeway is " << pricing_leeway); + + if ((commodity.history && + std::difftime(now, commodity.history->last_lookup) < pricing_leeway) || + std::difftime(now, last) < pricing_leeway || + (price && std::difftime(moment, date) <= pricing_leeway)) + return; + + using namespace std; + + DEBUG_PRINT_("downloading quote for symbol " << commodity.symbol); + + char buf[256]; + buf[0] = '\0'; + + bool success = true; + + if (FILE * fp = popen((string("getquote \"") + + commodity.symbol + "\"").c_str(), "r")) { + if (feof(fp) || ! fgets(buf, 255, fp)) + success = false; + if (pclose(fp) != 0) + success = false; + } + + if (success && buf[0]) { + char * p = strchr(buf, '\n'); + if (p) *p = '\0'; + + DEBUG_PRINT_("downloaded quote: " << buf); + + price.parse(buf); + commodity.add_price(now, price); + + commodity.history->last_lookup = now; + cache_dirty = true; + + if (price && ! price_db.empty()) { + strftime(buf, 127, "%Y/%m/%d %H:%M:%S", localtime(&now)); + ofstream database(price_db.c_str(), ios_base::out | ios_base::app); + database << "P " << buf << " " << commodity.symbol + << " " << price << endl; + } + } else { + throw error(std::string("Failed to download price for '") + + commodity.symbol + "' (command: \"getquote " + + commodity.symbol + "\")"); + } +} + +} // namespace ledger |